NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Analyzing +4 | -1

A metal wire of length

L

is suspended vertically from a rigid support. When a body of mass

M

is attached to the lower end of wire, the elongation of the wire is

\ell

, then the incorrect statement is

View answer and explanation

Correct option: D

The elastic potential energy in the wire is

{Mg}\ell

Option D (The elastic potential energy in the wire is

{Mg}\ell

) is correct because the elastic potential energy stored is half the loss in gravitational potential energy, which is Mg\ell/2.

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